Files
CelerisLab/tests/validation/analyze_jet_cv_continuation.py
T

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Python

#!/usr/bin/env python3
"""Offline common-unit/sampling sensitivity comparison; never grants physics acceptance."""
import argparse
import hashlib
import json
from pathlib import Path
import numpy as np
def integrate(t, y):
return np.sum(
np.diff(t).reshape((-1,) + (1,) * (y.ndim - 1)) * (y[1:] + y[:-1]) * 0.5, axis=0
)
def analyze(directory):
meta_path = next(Path(directory).glob("samples_s*.json"))
meta = json.loads(meta_path.read_text())
c = meta["case"]
s = c["scale"]
sample_path = meta_path.parent / meta["sample_file"]
checksum_verified = False
if "sample_sha256" in meta:
if (
hashlib.sha256(sample_path.read_bytes()).hexdigest()
!= meta["sample_sha256"]
):
raise ValueError("Sample file hash mismatch")
checksum_verified = True
a = np.load(sample_path)
t = a["t_reference"]
if not len(t) or t[0] != 0 or np.any(np.diff(t) <= 0):
raise ValueError("Sample reference times must increase strictly from zero")
from jet_cv_measurements import sample_steps
complete_schedule = np.array_equal(t, sample_steps(c) / s**2)
records = []
# Input retains root units; convert before all budgets/comparisons.
inv = a["cv_inventory"] * np.array([1 / s**2, 1 / s, 1 / s])
flux = a["cv_flux"] * np.array([1.0, s, s])
raw = a["raw_cumulative"] * np.array([1 / s, 1 / s, 1.0, 1 / s**2])
raw[:, :, :, 2] /= (
s**2
) # angular impulse reference = root/s^2 (not used in force tests)
q0 = 2 * np.pi / 12 * (c["diameter"] / 2) * c["jet_speed"]
f0 = 0.5 * (c["u"] * s) ** 2 * (c["diameter"] / s)
for lo in range(0, 3200, 100):
hi = lo + 100
ids = np.flatnonzero((t >= lo) & (t <= hi))
if len(ids) < 2 or t[ids[0]] != lo or t[ids[-1]] != hi:
continue
first, last = ids[0], ids[-1]
delta = inv[last] - inv[first]
ledger = raw[last] - raw[first]
cv_variants = []
for stride in (1, 2, 4):
selected = np.unique(np.r_[ids[::stride], ids[-1]])
total = integrate(t[selected], flux[selected])
m = delta[:, :, 0] + total[:, :, 0]
j = -delta[:, :, 1:] - total[:, :, 1:]
cv_variants.append(
np.concatenate(
(
(m - ledger[:, 2, 3, None])[:, :, None] / (100 * q0),
(j - ledger[:, 2, None, :2]) / (100 * f0),
),
axis=-1,
)
)
arc = (
integrate(t[ids], a["arc_estimates"][ids]) / 100
) # Q/M rate conversion is unity
# Each estimator, aperture, Q/M; compare against signed prescribed Q (rho_ref=1 for M only).
arc_ratio = arc / np.array([q0, -q0])[None, None, :, None]
global_delta = (
a["global_mass_reference"][last] - a["global_mass_reference"][first]
)
records.append(
dict(
t_reference=[lo, hi],
startup=hi <= 800,
normalized_cv_residual=np.array(cv_variants).tolist(),
temporal_sensitivity_max=float(
np.max(abs(np.array(cv_variants)[1:] - cv_variants[0]))
),
arc_ratio_to_command_reference_density=arc_ratio.tolist(),
global_mass_residual_over_nominal=(
(global_delta - ledger[:, 2, 3]) / (100 * q0)
).tolist(),
raw_reaction_coefficient=(ledger[:, 2, :2] / (100 * f0)).tolist(),
raw_gross_mass_over_nominal=(
(abs(ledger[:, 3, 3]) + abs(ledger[:, 4, 3])) / (100 * q0)
).tolist(),
raw_wall_mass_over_nominal=(ledger[:, 0, 3] / (100 * q0)).tolist(),
)
)
return dict(
scale=s,
complete_schedule=bool(complete_schedule),
sample_checksum_verified=checksum_verified,
windows=records,
sampled_density_range=[
float(a["level_stats"][..., 0].min()),
float(a["level_stats"][..., 1].max()),
],
sampled_max_speed_reference=float(a["level_stats"][..., 3].max()),
global_mass_initial_final=a["global_mass_reference"][[0, -1]].tolist(),
max_sampled_fine_velocity_error=float(a["velocity_error"].max()),
physics_validation_pass=False,
)
def main():
p = argparse.ArgumentParser(description=__doc__)
p.add_argument("directories", nargs="+", type=Path)
p.add_argument("--output", type=Path, required=True)
a = p.parse_args()
results = [analyze(d) for d in a.directories]
payload = dict(
status="TRANSIENT_DIAGNOSTIC_COMPARISON",
results=results,
physics_validation_pass=False,
)
if sorted(x["scale"] for x in results) == [1, 2] and all(
x["complete_schedule"] for x in results
):
ordered = sorted(results, key=lambda x: x["scale"])
summary = []
for startup in (True, False):
r = [
np.array(
[
w["normalized_cv_residual"][0]
for w in item["windows"]
if w["startup"] == startup
]
)
for item in ordered
]
e = [
np.array(
[
w["temporal_sensitivity_max"]
for w in item["windows"]
if w["startup"] == startup
]
)
for item in ordered
]
rms = [np.sqrt(np.mean(x * x, axis=(0, 1, 2))) for x in r]
unc = max(float(x.max()) for x in e)
summary.append(
dict(
startup=startup,
rms_normalized_residual_mass_Cx_Cy=[v.tolist() for v in rms],
max_temporal_sensitivity=unc,
reduction_exceeds_twice_temporal_proxy=(
rms[0] - rms[1] > 2 * unc
).tolist(),
)
)
payload["refinement_trend"] = summary
a.output.write_text(json.dumps(payload, indent=2) + "\n")
if __name__ == "__main__":
main()